Carrierlytics City Coverage Guide

San Jose, CA Cell Phone Coverage Map & Network Rankings (2026)

Don't overpay for a network that struggles where you actually use your phone.

Using FCC mobile coverage data across San Jose, CA ZIP codes, Carrierlytics compares the top-performing networks and the cheapest plans that use them.



Cell phone coverage map for San Jose, CA

Zoom in for local detail. Tap or click a colored area to see coverage and signal details. On mobile, use two fingers to move the map.

Coverage Key
Less covered More covered
Darker areas mean the carrier covers more of that location.

Map data © OpenStreetMap contributors, © CARTO. Rendered with MapLibre. FCC BDC mobile coverage processed by Carrierlytics.

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Cell phone coverage rankings by network in San Jose, CA

#1

T-Mobile

Coverage Score 91.7
In San Jose, CA
Overall
92.0%
4G LTE
91.8% avg. -86 dBm 4G LTE signal where 4G LTE coverage exists: avg. -86 dBm
5G
90.4% avg. -83 dBm 5G signal where 5G coverage exists: avg. -83 dBm
Fast 5G
82.9% avg. -82 dBm Fast 5G signal where Fast 5G coverage exists: avg. -82 dBm
Santa Clara County, CA covered 52.0%
#2

Verizon

Coverage Score 91.3
In San Jose, CA
Overall
97.5%
4G LTE
97.5% avg. -78 dBm 4G LTE signal where 4G LTE coverage exists: avg. -78 dBm
5G
85.8% avg. -89 dBm 5G signal where 5G coverage exists: avg. -89 dBm
Fast 5G
74.3% avg. -88 dBm Fast 5G signal where Fast 5G coverage exists: avg. -88 dBm
Santa Clara County, CA covered 78.3%
#3

AT&T

Coverage Score 78.7
In San Jose, CA
Overall
94.8%
4G LTE
92.2% avg. -97 dBm 4G LTE signal where 4G LTE coverage exists: avg. -97 dBm
5G
90.4% avg. -102 dBm 5G signal where 5G coverage exists: avg. -102 dBm
Fast 5G
60.8% avg. -100 dBm Fast 5G signal where Fast 5G coverage exists: avg. -100 dBm
Santa Clara County, CA covered 61.3%

County coverage is shown for surrounding-area context and uses land-area only coverage.

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Best phone plans for San Jose, CA

Best phone plans on T-Mobile's network for San Jose, CA

91.7 T-Mobile coverage score Ranked #1 in San Jose, CA
Best family plan
79.5 Value Score

T-Mobile Better Value

Fair Value

Price
$140.01/mo for 3 lines ($46.67/line)
Data
Unlimited
Hotspot
Unlimited
View plan
See all plans on T-Mobile Compare all phone plans

Coverage by ZIP code in San Jose, CA

ZIP code areas can extend beyond city limits, so this table is best used for local comparison around the city.

ZIP Code AT&T T-Mobile Verizon
95002 83.4% 54.3% 78.0% 64.1% 98.7% 98.7% 98.7% 90.6% 100.0% 100.0% 100.0% 97.3%
95008 100.0% 99.3% 98.7% 67.8% 100.0% 100.0% 100.0% 98.7% 100.0% 100.0% 95.4% 75.0%
95013 100.0% 100.0% 100.0% 80.5% 100.0% 100.0% 100.0% 95.1% 100.0% 100.0% 95.1% 82.9%
95037 84.2% 84.0% 72.8% 37.4% 39.0% 38.5% 37.2% 30.5% 75.8% 74.4% 41.9% 25.4%
95050 100.0% 100.0% 100.0% 70.6% 100.0% 100.0% 100.0% 97.6% 100.0% 100.0% 99.2% 95.2%
95054 100.0% 100.0% 100.0% 87.6% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 99.3% 91.5%
95070 68.5% 66.7% 52.4% 22.9% 62.6% 62.6% 55.0% 36.2% 99.5% 99.5% 78.2% 52.7%
95110 100.0% 100.0% 99.1% 66.4% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0%
95111 100.0% 100.0% 100.0% 77.8% 100.0% 100.0% 99.3% 98.5% 100.0% 100.0% 84.4% 74.1%
95112 100.0% 99.4% 97.7% 77.9% 100.0% 100.0% 100.0% 98.3% 100.0% 100.0% 95.9% 84.3%
95113 100.0% 100.0% 100.0% 75.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0%
95116 100.0% 100.0% 100.0% 74.4% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 97.6%
95117 100.0% 100.0% 100.0% 66.1% 100.0% 100.0% 100.0% 94.6% 100.0% 100.0% 100.0% 98.2%
95118 98.9% 98.9% 97.9% 61.7% 100.0% 100.0% 100.0% 96.8% 100.0% 100.0% 95.7% 75.5%
95119 93.2% 93.2% 89.3% 66.0% 100.0% 100.0% 100.0% 97.1% 100.0% 100.0% 92.2% 86.4%
95120 72.7% 70.9% 57.9% 22.0% 62.0% 61.7% 48.6% 31.8% 92.3% 92.1% 52.8% 33.8%
95121 99.0% 99.0% 98.1% 72.4% 100.0% 100.0% 100.0% 99.0% 100.0% 100.0% 99.0% 92.4%
95122 100.0% 100.0% 100.0% 72.7% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 96.4%
95123 98.4% 98.4% 98.4% 75.7% 100.0% 100.0% 100.0% 98.9% 100.0% 100.0% 95.7% 84.3%
95124 99.4% 99.4% 97.5% 69.8% 100.0% 100.0% 99.4% 82.4% 100.0% 100.0% 98.1% 90.6%
95125 100.0% 100.0% 100.0% 75.0% 100.0% 100.0% 98.8% 86.9% 100.0% 100.0% 90.5% 71.4%
95126 100.0% 100.0% 100.0% 80.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 88.8% 62.5%
95127 57.1% 53.3% 45.8% 16.7% 72.5% 72.2% 70.7% 51.2% 98.0% 98.0% 69.3% 55.8%
95128 100.0% 100.0% 98.9% 73.6% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 96.7% 84.6%
95129 99.1% 99.1% 99.1% 72.9% 100.0% 100.0% 100.0% 85.0% 100.0% 100.0% 100.0% 96.3%

About The Coverage Data

Coverage and signal estimates are derived by Carrierlytics from carrier-reported data in the FCC’s National Broadband Coverage Map, last updated in June 2025. “Percent covered” shows how much of the city or ZIP code area has a carrier signal, whether weak or strong. Signal bars show the estimated average signal strength in areas of San Jose, CA where that carrier has coverage.

If a carrier says you should have service but you do not, run a challenge test with the FCC Mobile Speed Test App. The FCC uses those results to check carrier-submitted coverage data and requires a carrier response when enough tests show a pattern of inaccurate coverage reporting.